The prevalence of psychopathy on Wall Street is unknown -- but Hare wouldn't be shocked if it were far above the rate in the general population, which is about 1%.

"It may be even higher than 10%, on the assumption that psychopathic entrepreneurs and risk-takers tend to gravitate toward financial watering-holes, particularly those that are enormously lucrative and poorly regulated," Hare wrote in a comment on his website. "But, until the research has been conducted, we are left with anecdotal evidence and widespread speculation."

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I don't know what psychological term you want to put on it, but I've long maintained that the financial services industry attracts more than it's share of rogues and thieves.